Locking and tightening means



July 18, 1939. E. s. PERSSON LOCKING AND TIGHTENING MEANS 4 Sheets-Sheef 1 Filed Nov. 10, 1957 I 41 ,rwentbr; E. S. PERssoN .9 W M W.

y 13, 1939- E. s. PERSSON' 2,166,318

LOCKING AND TIGHTENING MEANS Filed Nov. 10, 1937 4 Sheets-Sheet 2 1 5 5. PERssoN y 18,1939. E. s. PERSSON 2,166,318

LOCKING AND TIGHTENING MEANS Filed Nov. 10, 1937 4 Sheets-Sheet 3 ,jwlzizzc ES. PERSSQN July 18, 1939. E. s. PERSSON LOCKING AND TIGHTENING MEANS Filed Nov. 10, 1937 I 4 Sheets-Sheet 4 E 5 PERSSON Patented July 18, 1939 UNITED STATES PATENT OFFICE Application November 10, 1937, Serial No. 173,906 In Sweden June 29, 1937 2 Claims. (Cl. 292-39) The object of my present invention is to provide improved locking and tightening means, particularly adapted for use in connection with doors, windows, and shutters of every kind and size.

Another object of the present invention is to provide improved locking means of the kind specified capable of being used for looking a window or the like as well in closed position of the window as also in a more or less open position thereof.

Some embodiments of the invention, applied to windows, are illustrated in the drawings, in which:

Fig. 1 shows an elevation of the window,

Figs. 2 and 3 show, on an enlarged scale, cross sectional views of the frame and sash, the locking and tightening means being shown respectively in an unlocked and in a locked up position,

Fig. 4 shows an elevation of the locking and tightening means separately,

Fig. 5 shows a modified construction of the connection between the locking members,

Figs. 6A, 6B and '7 show another modification of said connection, Figs. 6A and 63 together being an elevation and Fig. '7 a plan view,

Figs. 8 and 9 show in a similar way a still further modification,

Figs. 10 to 13 illustrate an embodiment of a device for locking the window in different open positions, Fig. 10 thereby showing a sectional view on line AA in Figs. 1 and 11, while Figs. 11 and 12 show elevations, and Fig. 13 a sectional View on line C-C of Fig. 12, and

Figs. 14-16 show a device having the same object as that one shown in Figs. 10-13.

The window illustrated in the drawings is of the type adapted to be opened and closed by swinging movements about a horizontal axis in such a manner as to cause the lower edge of the window to be moved outwards when opening the window. In the example illustrated, the frame I is provided with a longitudinal slot, or recess, a U-shaped piece of fittings, or casing, 2 being placed in said slot and the open edge of said casing facing towards the sash 3. In this case, said casing extends along the vertical members of the frame and along the bottom member thereof, as indicated by dotted lines in Fig. 1.

In the casing 2, a number of bars 4, 5, 6 are mounted, said bars being shown separately in Fig. 4. With the horizontal bar 4 a control device is connectedwhich, in the embodiment shown, comprises a pin 1 pivotally mounted in one wall of the casing 2 and fixedly connected to a handle 8. On the pin 1 a lever 9 is mounted which is articulated to the bar 4 by means of a pin Hill. The casing 2 is provided with a slot (not shown) permitting the lever 9 to be rotated about the pin 1.

At one end the bar 4 is pivotally connected to a bell lever Ill articulated to the casing 2 by means of a pin II. The other end of said lever I0 is pivoted to the vertical bar 6 by means of a pin I2.

At its opposite end the bar 4 is similarly connected to a bell lever l3 which is, in turn, articulated to the casing 2 by means of a pin l4 and articulated to the bar 5 by means of another pin I5. The bars 5, 6 and, in certain cases, also the bar 4 are provided with a number of slots l6 cooperating with pins I! secured to the easing 2 in the way shown in the drawings.

In the bottom and side members of the window-sash a longitudinal groove is provided and in said groove a substantially U-shaped piece of fittings I8 is positioned, in the bottom of which a tightening strip 19 is preferably situated. In certain cases said piece of fittings It covers only one side of the longitudinal groove of the sash.

When the lever 9 is rotated by means of the handle 8 in an anti-clockwise direction (Fig. 4), the bar 4 is raised along an arcuate path upwards and to the right. Thereby the bell levers Ill, l3 are rotated in the same direction on the pins H and I4, respectively, the bars 5, 5 guided by the pin and slot connections l5, l1 thereby being moved upwards and inwards towards each other. If the window is in a closed position, the bars 4, 5, 6 are thus introduced into the fittings l8 and pressed against the tightening strip Hi. It should be apparent that up rotating the lever 9 in the opposite direction the bars 4, 5, 6 are pulled out of the fittings I8 and introduced into the casing 2.

In Fig. 5 another embodiment of the connection between bars 4 and 5 is shown. In this case the firstmentioned bar is provided with a horizontal slot 20 and the bar 5 has a pin 2| engaging said slot. The connection between bars 4 and 6 is arranged in the same manner and the guiding of said bars is effected by links 35 arranged in suitable positions and pivotally mounted as well in the casing 2 as on the bars. Naturally, also in this case slot and pin connections of the nature described above may be used instead of said link connections.

In the embodiment according to Figs. 6A, 6B, and 7 the bar 4 is fixedly connected to bar 5 at the corner. Also bar 6 (not shown) is secured to the bar 4 but said lastmentioned bar is not continuous but split into two parts at the middle thereof. The two parts 4a, 4b of the bar 4 are, in this case, interconnected by means of an eccentric means comprising two eccentric disks 22, 23 which are in reality mounted on one and the same shaft 24 although, for the sake of distinctness, they are together with the bars 4a, 4b shown separately in Figs. 6A and 6B. The shaft 24 is provided with a handle 8 and pivotally mounted in the casing 2, whereas it may also be mounted to pivot in a bearing means in the frame The bar 4a is provided with a recess 26 for the eccentric disk 22, and a similar recess 21 for the eccentric disk 23 is provided in a bar 28 riveted to the bar 4b. When turning the shaft 24 through an angle of about 180 from the position shown the bars 4a, 4b are pulled together by the eccentric disks and, thanks to the slot and pin connections l6, l1, said bars are at the same time moved upwards. The bars 4a, 4b, 5, and 6 are in this way moved obliquely towards the window sash, as in the embodiments prevl ously described.

In Figs. 8 and 9 a further embodiment is illustrated. In this case the bars are let into each other in the manner shown at the left portion of Fig. 8, i. e. a projection 32 on the bar 4a engages a corresponding recess in the edge of bar 5 without being secured to said lastmentioned bar. Hereby a certain possibility of adjustment is obtained with regard to the horizontal distance between bars 5 and 6. At the corner the casing 2 is joined together in the way shown in the right portion of Fig. 8, i. e. the vertical member rests directly on the horizontal one thereby enabling of a certain adjustment here, too.

Furthermore, since the slots l6 extend to the edge of the bars, the pins I! (not shown) may be shaped in such a manner as to completely fill up the slots Hi When the bars are wholly inserted in the casing 2, i. e. the pins are 01 the same shape as said slots l6.

Each bar 4a, 4b is provided at its inner end with a series of teeth 33, and two toothed wheels 36, 31 engaging each other are mounted on shafts 34, 35 in the casing 2. The shaft 34 extends through the frame and is provided with a handle 8.

Above the toothed wheels 36, 31 a cover plate 38 is fixedly mounted in the casing 2, said cover plate filling up the opening between the bars 4a and 4b and preventing small particles from dropping onto the toothed wheels.

It should be unnecessary to explain the way of operation of said device in detail.

In the constructions above described the bars may be employed also for locking up the window-sashes in different open positions. An arrangement for said purpose is illustrated in Figs. 10 to 13.

The pivot centre of the window is situated at 4|] at the inner side of the window, and a plate 4| extends from the outer side of the sash 3 inwards over the sash above the pivot centre 40. Said plate 4| is of angle-shape and is provided in its flange 44 extending obliquely towards the frame I with a number of recesses 42 (Fig. 12). A groove 43 (Figs. 10 and 13) is provided in the frame I, the plate 4| moving in said groove when the window is being swung about its pivot centre 40.

A number of hooks 45 are secured to the lower edge of the window-sash at the inner side thereof, preferably one at each end of the windowsash.

When the window is opened by turning in the direction indicated by the arrow B (Fig. 11) it is lockable in a number of different opened positions by means of bars 4, 5, 6 and the fittings 4| and 45 described above simply by turning the handle 8. Hereby the hooks 45 are firstly employed when the window has become opened to such an extent as to place one of the recesses of said hooks directly above the bar 4. When further opening the window the different recesses 42 in the plate 4| arrive successively into a position opposite the bars 5 and 6 and then the window may be locked up by introduction of the bars into said recesses, still simply by turning the handle 8. In order to secure free passage of the plate 4| the bars 5, 6 may be provided with a recess in the edge (not shown) or they may be retracted as far into the casing 2 as to form no obstacle.

In Figs. 14 to 16 another embodiment of the device for locking the window in different opened position is illustrated. Also in this case 2. plate is mounted on the vertical edge of the window-sash. The plate 50 is provided with a number of recesses, or slots, 5| adapted in different opened positions of the window to coact with a projection 52 on the bars 5 and 6. The

way of operation should be obvious from the above description.

Numerous modifications of the embodiments above described may be performed within the limits of the invention. Thus, for instance, the bars 4, 5, 6 may be situated in the windowsash and the piece of fittings |8 in the frame, the bars then moved into its locking position by their movement outwards and downwards. Other examples of modifications consist in that the fittings l8 are not of U-shape but cover only a portion of the edge of the recess of the sash (or the frame). Said recess may also be completely or partially lacking. In the last mentioned case the bar is provided with recesses in the edge thereof at the points or places. where the recesses in the sash are lacking. Instead of plane bars U-shaped bars may, for instance, be employed and the operating means may be modified in several diiferent ways. Furthermore, the invention may be applied in such a manner as to mount bars at a greater or smaller number of edges than those indicated above, and the connecting means between the bars as described above may be combined in different ways. When using bars along all the four edges of the window or the like, the horizontal bottom bar may, for instance, be fixedly connected to the two vertical bars, said vertical bars being in turn connected with the upper horizontal bar, for instance, in any of the ways illustrated in Figs. 4 or 5. Also other modifications are feasible within the limits of the invention, and said invention may be applied to different kinds of windows, doors, shutters, and the like.

I claim:

1. In a locking and tightening device for windows, bars displaceably mounted along three edges of said window, guiding means for said bars, interconnecting means at the ends of said bars, the intermediate bar comprising two parts, each of the inner ends of said parts being provided with a toothed rack positioned at an angle to the direction of length of the bars, two gear wheels in the space between said toothed racks,

one of said gear wheels being in engagement with the other gear Wheel and with one of the toothed racks, and an operating handle connected to one of said gear wheels.

2. In a locking and tightening device for windows, bars displaceably mounted along three edges of said window, guiding means for said bars, recesses in the inner edges of the two outer bars, projections at the outer ends of the inter- 10 mediate bar corresponding to said recesses, the 

